迭代JSON对象，返回一个带有嵌套字典的列表？

import json

def parse_json(json_str):
    json_data = json.loads(json_str)
    return json_data

def iterate_json(json_data):
    result = []
    
    if isinstance(json_data, dict):
        for key, value in json_data.items():
            if isinstance(value, dict):
                result.append({key: iterate_json(value)})
            else:
                result.append({key: value})
    elif isinstance(json_data, list):
        for item in json_data:
            result.append(iterate_json(item))
    
    return result

json_str = '{"name": "John", "age": 30, "address": {"city": "New York", "country": "USA"}, "hobbies": ["reading", "traveling"]}'
json_data = parse_json(json_str)
result = iterate_json(json_data)
print(result)

[{'name': 'John'}, {'age': 30}, {'address': [{'city': 'New York'}, {'country': 'USA'}]}, {'hobbies': ['reading', 'traveling']}]